Denso W20FPRU10 Spark Plug

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Rating
Brand	Code
3.3 / 5 Overall
Denso	W20FPRU10
3.0 / 5 Materials
Copper	Copper
Ground electrode	Center electrode
4.0 / 5 Design
U-Groove	Standard
Ground type	Center type

Specifications
Gap	Heat range
1mm (.039")	20
⌀14mm	1.25mm
Thread diameter	Thread pitch
12.7mm (1/2")	21mm (13/16")
Reach	Hex size
Gasket	Threaded Stud
Seat	Terminal
1	Non-Projected
Ground count	Projection

Cross-reference and alternatives

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Two steps colder (1)

Two steps colder spark plugs with same characteristics for heavily modified engines (150-200 hp increase)

W24FPR-U10

Copper

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3.3/ 5

.039"12.7mm, ⌀14x1.25HR 24